The impact study of electric vehicle (EV) grid
integration on medium voltage (MV) grids was carried out to
quantify the power component loading and voltage profile
change in MV grids due to the extra demands from the EV
charging. Three charging scenarios, dumb charging, time
charging and fleet operator based charging, were considered in
the impact study to assess the impacts of different charging
options. In the mean time, different charging power levels
were included in the impact study as well. A MV grid from the
Bornholm power system was used to implement the case
studies.